The NanoCam Sq optical profilometer utilizes Dynamic Interferometry®, incorporating a high-speed optical sensor that measures thousands of times faster than traditional optical profilers. Because acquisition time is so short, the NanoCam Sq can measure despite vibration, making it possible to mount the instrument in polishing equipment, on a gantry or on a robot end effector.

The NanoCam Sq is compact and lightweight enough to be placed directly on large optics. With this freedom of positioning the NanoCam can measure surface finish at any location on a large optic.

Applications for the NanoCam Sq optical profiler include surface roughness of small and large coated/uncoated optics, on-machine surface roughness metrology, and process control for polishing operations.

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In a conventional phase-shifting laser interferometer, multiple frames of data are acquired over many milliseconds—enough time for vibration and turbulence to degrade the measurement results. In a dynamic interferometer, all phase data is acquired simultaneously, in as little as thirty microseconds. This speed enables 4D dynamic interferometers to measure in noisy environments, despite vibration solation or air turbulence.

Dynamic interferometry® enables complex tests between multiple unisolated tables, measurements in environmental chambers, and measurements with long stand-off distances. Odd shapes, pupil obscurations, poor signal contrast, moving parts, air turbulence and mechanical vibration are not problems. Special wavefront sensors have also been developed for wavelength insensitivity, higher spatial resolution, and applications within tight space restrictions.

4D Service Contracts and Warranties

4D Technology’s products are rigorously tested to ensure years of quality service. All 4D products are warranted for one year against defects in material and workmanship. The 4D warranty covers parts and labor, including field service if applicable.

At the time of system purchase, for added protection you can choose to extend the basic warranty for up to 3 additional years.

Alternately, one of three tiers of Service Contracts can be selected to supplement the original warranty, extend the period of coverage and provide additional support. These Service Contracts are available at a range of pricing and can be purchased at any time up to five years after factory shipment. The Platinum Contract offers the highest level of benefits including preventive maintenance and calibration. Download PDF »